1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2017 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/standards.sae.org/AMS4365 AEROSPACE MATERIAL SPECIFICATION AMS4365 Issued 2017-06 Aluminum Alloy, Plate, 7.9Zn 1.
5、2Cu - 2.1Mg - 0.10Zr (7097-T7651) Solution Heat Treated, Stress Relieved, and Overaged RATIONALE AMS4365 is a new specification for 7097-T7651 aluminum plate. 1. SCOPE 1.1 Form This specification covers an aluminum alloy in the form of plate from 3.000 to 8.000 inches (76.20 to 203.20 mm) in thickne
6、ss (see 8.4). 1.2 Application This plate has been used typically for parts requiring a high level of tensile properties in conjunction with good fracture toughness and moderate resistance to stress-corrosion cracking, but usage is not limited to such applications. 2. APPLICABLE DOCUMENTS The issue o
7、f the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no
8、superseding document has been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2355 Q
9、uality Assurance, Sampling and Testing Aluminum Alloys and Magnesium Alloy Wrought Products (Except Forging Stock), and Rolled, Forged, or Flash Welded Rings AMS2772 Heat Treatment of Aluminum Alloy Raw Materials ARP1917 Clarification of Terms Used in Aerospace Metals Specifications SAE INTERNATIONA
10、L AMS4365 Page 2 of 7 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM B594 Ultrasonic Inspection of Aluminum-Alloy Products for Aerospace Applications ASTM B660 Packing/Packaging of
11、 Aluminum and Magnesium Products ASTM B666/B666M Identification Marking of Aluminum and Magnesium Products ASTM E466 Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials ASTM G34 Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Te
12、st) ASTM G47 Standard Test Method for Determining Susceptibility to Stress- Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products 2.3 ANSI Accredited Publications Copies of these documents are available online at http:/webstore.ansi.org/. ANSI H35.1/H35.1M Alloy and Temper Designation Systems
13、for Aluminum ANSI H35.2 Dimensional Tolerances for Aluminum Mill Products ANSI H35.2M Dimensional Tolerances for Aluminum Mill Products (Metric) 3. TECHNICAL REQUIREMENTS 3.1 Composition Composition shall conform to the percentages by weight shown in Table 1, determined in accordance with AMS2355. T
14、able 1 - Composition Element Min Max Silicon - 0.12 Iron - 0.15 Copper 0.8 1.6 Manganese - 0.04 Magnesium 1.6 2.6 Chromium - 0.04 Zinc 7.4 8.4 Titanium - 0.06 Zirconium 0.05 0.15 Other Elements, each - 0.05 Other Elements, total - 0.15 Aluminum remainder 3.2 Condition Solution heat treated, stretche
15、d to produce a nominal permanent set of 2%, but not less than 1-1/2%, nor more than 3%, and precipitation heat treated to the T7651 temper (see ANSI H35.1/H35.1M). Solution and precipitation heat treatment shall be performed in accordance with AMS2772 as applicable to 7XXX alloys. The actual practic
16、es are considered proprietary. 3.2.1 Plate shall receive no further straightening operations after stretching. SAE INTERNATIONAL AMS4365 Page 3 of 7 3.3 Properties Plate shall conform to the following requirements, determined in accordance with AMS2355 on the mill produced size and as specified here
17、in. 3.3.1 Tensile Properties Shall be as specified in Table 2. 3.3.1.1 Mechanical properties for product outside the range covered by Table 2 shall be agreed upon between purchaser and producer. Table 2 Table 2A - Minimum tensile properties, inch/pound units Nominal Thickness Inches Specimen Orienta
18、tion Tensile Strength ksi Yield Strength at 0.2% Offset ksi Elongation in 2 Inches or 4D % 3.000 to 4.000, incl Longitudinal 74.0 71.0 12 Long Trans. 77.0 71.0 7 Short Trans. 75.0 66.0 4 4.001 to 5.000, incl Longitudinal 74.0 71.0 11 Long Trans. 76.0 70.0 6 Short Trans. 74.0 65.0 3 5.001 to 6.000, i
19、ncl Longitudinal 74.0 71.0 9 Long Trans. 76.0 69.0 4 Short Trans. 73.0 65.0 3 6.001 to 7.000, incl Longitudinal 74.0 70.0 8 Long Trans. 75.0 68.0 3 Short Trans. 72.0 64.0 3 7.001 to 8.000, incl Longitudinal 73.0 69.0 6 Long Trans. 74.0 67.0 3 Short Trans. 71.0 63.0 3 Table 2B - Minimum tensile prope
20、rties, SI units Nominal Thickness Millimeters Specimen Orientation Tensile Strength MPa Yield Strength at 0.2% Offset MPa Elongation in 50.8 mm or 4D % 76.20 to 101.60 incl Longitudinal 510 490 12 Long Trans. 531 490 7 Short Trans. 517 455 4 Over 101.60 to 127.00, incl Longitudinal 510 490 11 Long T
21、rans. 524 483 6 Short Trans. 510 448 3 Over 127.00 to 152.40, incl Longitudinal 510 490 9 Long Trans. 524 476 4 Short Trans. 503 448 3 Over 152.40 to 177.80, incl Longitudinal 510 483 8 Long Trans. 517 469 3 Short Trans. 496 441 3 Over 177.80 to 203.20, incl Longitudinal 503 476 6 Long Trans. 510 46
22、2 3 Short Trans. 490 434 3 SAE INTERNATIONAL AMS4365 Page 4 of 7 3.3.2 Electrical Conductivity Shall be not lower than 39.0% IACS (International Annealed Copper Standard) (22.6 MS/m), as determined on the surface of the plate. 3.3.2.1 Plate not meeting the requirements of 3.3.2 may be given addition
23、al precipitation heat treatment or reheat treated. After such treatment, if all specified properties are met, the plate is acceptable. 3.3.3 Exfoliation Corrosion Resistance Plate shall not exhibit exfoliation-corrosion greater than that illustrated by Photo B, Figure 2, when tested in accordance wi
24、th ASTM G34. 3.3.4 Stress Corrosion Cracking Specimens shall be tested in accordance with ASTM G47 and shall show no evidence of stress corrosion cracking when stressed in the short transverse direction to 26.0 ksi (179 MPa) for a duration of 20 days. 3.3.5 Fatigue Resistance When specified, 5.001 t
25、o 8.000 inch (127.00 to 203.20 mm), inclusive thick plate shall be tested in accordance with ASTM E466. When tested at a stress ratio of R=0.1 at a maximum stress of 35.0 ksi (241 MPa), the fatigue life shall meet the requirements of Table 3. Table 3 - Fatigue life requirements Minimum cycles per te
26、st 90000 cycles Lot Log Average of 4 tests, min 120000 cycles Runout 150000 cycles 3.3.6 Fracture Toughness When specified, plane strain fracture toughness shall be tested in accordance with ASTM E399 and ASTM B645 for plate 3.000 to 8.000 inches (76.20 to 203.20 mm) inclusive in nominal thickness.
27、A valid KIc meeting the requirements of ASTM E399 or a KQ “useable for lot release” in accordance with ASTM B645 shall meet or exceed the values specified in Table 4. Table 4 Table 4A - Minimum KIc or KQ “useable for lot release” fracture toughness, inch/pound units Nominal Thickness Inches L-T ksi
28、T-L ksi S-L ksi 3.000 to 4.000, incl 29 25 24 4.001 to 5.000, incl 28 24 23 5.001 to 6.000, incl 27 23 22 6.001 to 7.000, incl 26 22 22 7.001 to 8.000, incl 25 21 21 Table 4B - Minimum KIc or KQ “useable for lot release” fracture toughness, SI units Nominal Thickness Millimeters L-T MPa T-L MPa S-L
29、MPa 76.20 to 101.60, incl 32 27 26 Over 101.60 to 127.00, incl 31 26 25 Over 127.00 to 152.40, incl 30 25 24 Over 152.40 to 177.80, incl 29 24 24 Over 177.80 to 203.20, incl 27 23 23 SAE INTERNATIONAL AMS4365 Page 5 of 7 3.4 Quality Plate, as received by purchaser, shall be uniform in quality and co
30、ndition, sound, and free from foreign materials and from imperfections detrimental to usage of the plate. 3.4.1 When specified, each plate 3.000 to 8.000 inches (76.20 to 203.20mm) shall be ultrasonically inspected in accordance with ASTM B594 and shall meet the requirements of 3.4.1.1. 3.4.1.1 Plat
31、es shall meet the requirements for ultrasonic Class A for plate 3.000 to 8.000 inches (76.20 to 203.2mm) in nominal thickness. 3.5 Tolerances Shall conform to all applicable requirements of ANSI H35.2 or H35.2M. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of plate sh
32、all supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the plate conforms to the specified requirements. 4.2 Classification of Tests 4.
33、2.1 Acceptance Tests Composition (3.1), tensile properties (3.3.1), electrical conductivity (3.3.2), tolerances (3.5), when specified, fatigue resistance (3.3.5), when specified, fracture toughness (3.3.6), and when specified, ultrasonic soundness (3.4.1) are acceptance tests and except for composit
34、ion, shall be performed on each inspection lot. 4.2.2 Periodic Tests Exfoliation corrosion resistance (3.3.3) and stress corrosion cracking (3.3.4) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.3 Sampling and
35、Testing Shall be in accordance with AMS2355 and the following: 4.3.1 Tensile Testing Tensile specimens shall be taken with axis of specimens parallel to each applicable grain flow direction specified in Table 2. 4.3.2 Fatigue Resistance Testing Two specimens for fatigue testing shall be taken from e
36、ach end of the parent plate in the long transverse grain direction. These specimens are to be removed from the T/2, W/2 location. Fatigue testing shall be conducted in air at 70 F 5 F (21 C 3 C) with a relative humidity of 30 to 50% using a frequency of 10 to 50 Hz. The test specimens shall meet the
37、 following requirements: 4.3.2.1 Fatigue Specimen Design Fatigue samples shall be machined to ASTM E466, Figure 1. The specimen shall have a 0.500 inch (12.70 mm) gage diameter, a 2.00 inch (50.80 mm) gage section, and 3.0 inch (76.20 mm) fillet radius. The grip section may be varied to fit differen
38、t grip configurations, but should have no less than a 1.0 inch (25.4 mm) diameter. SAE INTERNATIONAL AMS4365 Page 6 of 7 4.3.2.2 Fatigue Specimen Finishing Fatigue samples shall be longitudinally sanded to produce a fine satin finish of 16 microinches Ra (0.4 m) or better. An appropriate abrasive sh
39、all be used to remove transverse machining marks, followed by progressively finer abrasive media. Light oil may be used as a lubricant. The use of an automated polishing system is highly recommended. An equivalent procedure can be used provided it can be demonstrated that it gives equivalent results
40、 to those obtained using the above method. Specimens shall be degreased and cleaned prior to testing. 4.3.3 Fracture Toughness Testing For T-L and L-T test directions on plate over 3.000 to 4.000 inches (50.80 to 101.60mm), inclusive, in nominal thickness, use specimens 2.000 inch (50.80 mm) minimum
41、 thickness centered at T/2; and for plate over 4.000 inches (101.60 mm) in nominal thickness, use specimens 2.000 inch (50.80 mm) minimum thickness centered at T/4. For the S-L test direction, the test specimen shall be centered at T/2. Required specimen orientation(s) shall be specified by purchase
42、r. 4.4 Reports The vendor of plate shall furnish with each shipment a report stating that the plate conforms to the chemical composition, tensile properties, electrical conductivity, fatigue resistance (when specified), fracture toughness (when specified), ultrasonic inspection (when specified), and
43、 tolerances and showing the numerical results of tests on each inspection lot to determine conformance to the other acceptance test requirements. This report shall include the purchase order number, inspection lot number(s), AMS4365, size, and quantity. The report shall also identify the producer, t
44、he mill product form, and the size of the mill product. 4.4.1 When the product size is outside the range covered by Table 2, the report shall contain a statement to that effect. 4.4.2 When material produced to this specification is beyond the sizes allowed in the scope or tables, or other exceptions
45、 are taken to the technical requirements listed in Section 3 (see 5.1.1), the report shall contain a statement “This material is certified as AMS4365 (EXC) because of the following exceptions”, and the specific exceptions shall be listed. 4.5 Resampling and Retesting Shall be in accordance with AMS2
46、355. 5. PREPARATION FOR DELIVERY 5.1 Identification Shall be in accordance with ASTM B666/B666M. 5.1.1 When technical exceptions are taken (see 4.4.2), the material shall be marked with AMS4365 (EXC). 5.2 Packaging 5.2.1 Product shall be protected from damage during storage and shipment by a method
47、determined by vendor unless specified by purchaser. Examples of typical protective methods include, but are not limited to, interleaving with paper or oiling of the surfaces. 5.2.2 Plate shall be prepared for shipment in accordance with ASTM B660 and in compliance with applicable rules and regulatio
48、ns pertaining to the handling, packaging, and transportation of the plate to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number letter in all quotations and when acknowledging purchase orders. SAE INTERNATIONAL AMS4365 Page 7 of 7 7. REJEC
49、TIONS Plate not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a c
